Rock 365 : Day 310 : Precambrian-Cambrian Unconformity

Day 310 : Running a field course in Ercall Quarries, Shropshire, England for the third time in two weeks. This is the unconformity (nonconformity) between the Late Precambrian (~560Ma) Ercall Granophyre showing weathering at its upper surface and the breccia facies of the (~535Ma) Lower Cambrian Wrekin Quartzite.

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Hypocentre

Hypocentre a.k.a. Dr Ian G. Stimpson. Seismologist, geophysicist and structural geologist at Keele University, U.K.
You can contact me at hypocentre[at]gmail[dot]com.
All opinions are mine and do not necessarily represent those of my employer.